42434237 has 2 divisors, whose sum is σ = 42434238. Its totient is φ = 42434236.

The previous prime is 42434233. The next prime is 42434269. The reversal of 42434237 is 73243424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28847641 + 13586596 = 5371^2 + 3686^2 .

It is a cyclic number.

It is not a de Polignac number, because 42434237 - 2² = 42434233 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42434233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21217118 + 21217119.

It is an arithmetic number, because the mean of its divisors is an integer number (21217119).

Almost surely, 2^42434237 is an apocalyptic number.

It is an amenable number.

42434237 is a deficient number, since it is larger than the sum of its proper divisors (1).

42434237 is an equidigital number, since it uses as much as digits as its factorization.

42434237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 29.

The square root of 42434237 is about 6514.1566606891. The cubic root of 42434237 is about 348.7965113988.

The spelling of 42434237 in words is "forty-two million, four hundred thirty-four thousand, two hundred thirty-seven".